运行Ubuntu 12.04
我可以通过使用任何用户（包括根）的SSH成功login，但是无论何时我尝试SFTP到服务器我得到一个身份validation被拒绝。 下面是客户端（winscp）的错误，下面是“/var/log/auth.log”。 值得注意的是，我也可以在本地SFTP。 这不应该是一个防火墙问题，尤其是当端口扫描器显示服务器正在侦听端口22时。
Authentication log (see session log for details): Using username "test-user". Authentication failed. Apr 29 07:34:29 HOST_NAME sshd[3453]: Accepted password for test-user from XXXX port 43592 ssh2 Apr 29 07:34:29 HOST_NAME sshd[3453]: pam_unix(sshd:session): session opened for user test-user by (uid=0) Apr 29 07:34:31 HOST_NAME sshd[3564]: subsystem request for sftp by user test-user Apr 29 07:34:48 HOST_NAME sshd[3453]: pam_unix(sshd:session): session closed for user test-user
不知道从哪里开始真正开始debugging。 我已经完全卸载OPENSSH-SERVER并重新安装。 让我知道是否有进一步的细节需要（确切的命令可能会节省时间= P）
编辑：/ etc / ssh / sshd_config
# Package generated configuration file # See the sshd_config(5) manpage for details # What ports, IPs and protocols we listen for Port 22 # Use these options to restrict which interfaces/protocols sshd will bind to #ListenAddress :: #ListenAddress 0.0.0.0 Protocol 2 # HostKeys for protocol version 2 HostKey /etc/ssh/ssh_host_rsa_key HostKey /etc/ssh/ssh_host_dsa_key HostKey /etc/ssh/ssh_host_ecdsa_key #Privilege Separation is turned on for security UsePrivilegeSeparation yes # Lifetime and size of ephemeral version 1 server key KeyRegenerationInterval 3600 ServerKeyBits 768 # Logging SyslogFacility AUTH LogLevel INFO # Authentication: LoginGraceTime 120 PermitRootLogin yes StrictModes yes RSAAuthentication no PubkeyAuthentication no #AuthorizedKeysFile %h/.ssh/authorized_keys # Don't read the user's ~/.rhosts and ~/.shosts files IgnoreRhosts yes # For this to work you will also need host keys in /etc/ssh_known_hosts RhostsRSAAuthentication no # similar for protocol version 2 HostbasedAuthentication no # Uncomment if you don't trust ~/.ssh/known_hosts for RhostsRSAAuthentication #IgnoreUserKnownHosts yes # To enable empty passwords, change to yes (NOT RECOMMENDED) PermitEmptyPasswords no # Change to yes to enable challenge-response passwords (beware issues with # some PAM modules and threads) ChallengeResponseAuthentication no # Change to no to disable tunnelled clear text passwords #PasswordAuthentication yes # Kerberos options #KerberosAuthentication no #KerberosGetAFSToken no #KerberosOrLocalPasswd yes #KerberosTicketCleanup yes # GSSAPI options #GSSAPIAuthentication no #GSSAPICleanupCredentials yes X11Forwarding yes X11DisplayOffset 10 PrintMotd no PrintLastLog yes TCPKeepAlive yes #UseLogin no #MaxStartups 10:30:60 #Banner /etc/issue.net # Allow client to pass locale environment variables AcceptEnv LANG LC_* Subsystem sftp /usr/lib/openssh/sftp-server # Set this to 'yes' to enable PAM authentication, account processing, # and session processing. If this is enabled, PAM authentication will # be allowed through the ChallengeResponseAuthentication and # PasswordAuthentication. Depending on your PAM configuration, # PAM authentication via ChallengeResponseAuthentication may bypass # the setting of "PermitRootLogin without-password". # If you just want the PAM account and session checks to run without # PAM authentication, then enable this but set PasswordAuthentication # and ChallengeResponseAuthentication to 'no'. UsePAM yes
注释掉“AcceptEnv LANG LC_ *”
如果这是一个Red Hat / CentOS服务器，一个可能的原因可能是SELinux。 你可以查看它的状态
getenforce
命令并将其更改为禁用或允许作为临时解决scheme。